The Survey Score is converted to a Survey Rank, in percentage, to enable consistent assessment of participant performance between surveys. Participant’s scores are ranked top down, with top performers receiving a survey rank of 100% down to the bottom performers receiving a rank of 0%. Survey non‐participation is excluded from the ranking.
Figure 2 shows an example of survey score and survey rank.
Figure 2. Survey Score vs Survey Rank
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The Role of External Quality Assurance in Identifying Poor Laboratory Performance(PDF 518 KB)